The reasons we use Polyurethane for the Smart Bandage, are many. We try to explain a couple of the most important reasons.
First of All, PU is produced from the combination of more than 1 material. PU sheets are usable in many different branches of industry including:
• Mining Machinery and Equipment
• Printing Machines
• Rollers in Steel Production Process
• Pipelining
• Etc.
Because you can control the hardness of PU material, there are various usages. In Smart Bandage, we need FLEXIBILITY because the bandage should cover various angles and sleep over the skin in different situations. This flexibility is gained when we have low hardness thin layer of PU and when sterilized, a good base is made.
PU itself has various grades like: Casting PU, Thermal PU(TPU), …etc.
In fact when you can control the POROSITY, not only optimal hardness but also other qualities of the PU come to play their roles in our case. To produce our pads, we use salt to produce bubbles. Removed from pad, of course. Porosity satisfies very important problem encountering Chronic Wounds:
• Secretion which is a side effect of the injury
• Evaporation Requirement to stop the micro-organisms to grow on the wound.